ATE408960T1 - Konferenz-endgerät mit echoreduktion für ein sprachkonferenzsystem - Google Patents

Konferenz-endgerät mit echoreduktion für ein sprachkonferenzsystem

Info

Publication number
ATE408960T1
ATE408960T1 AT05774310T AT05774310T ATE408960T1 AT E408960 T1 ATE408960 T1 AT E408960T1 AT 05774310 T AT05774310 T AT 05774310T AT 05774310 T AT05774310 T AT 05774310T AT E408960 T1 ATE408960 T1 AT E408960T1
Authority
AT
Austria
Prior art keywords
conference
signal
implemented
conference terminal
echo
Prior art date
Application number
AT05774310T
Other languages
English (en)
Inventor
Martin Tittel
Manfred Lutzky
Juergen Hupp
Original Assignee
Fraunhofer Ges Forschung
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Application granted granted Critical
Publication of ATE408960T1 publication Critical patent/ATE408960T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/002—Applications of echo suppressors or cancellers in telephonic connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Telephonic Communication Services (AREA)
  • Telephone Function (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuit For Audible Band Transducer (AREA)
AT05774310T 2004-07-13 2005-07-11 Konferenz-endgerät mit echoreduktion für ein sprachkonferenzsystem ATE408960T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004033866A DE102004033866B4 (de) 2004-07-13 2004-07-13 Konferenz-Endgerät mit Echoreduktion für ein Sprachkonferenzsystem

Publications (1)

Publication Number Publication Date
ATE408960T1 true ATE408960T1 (de) 2008-10-15

Family

ID=35169862

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05774310T ATE408960T1 (de) 2004-07-13 2005-07-11 Konferenz-endgerät mit echoreduktion für ein sprachkonferenzsystem

Country Status (10)

Country Link
US (1) US7853007B2 (de)
EP (1) EP1745637B1 (de)
AT (1) ATE408960T1 (de)
CA (1) CA2572890C (de)
DE (2) DE102004033866B4 (de)
DK (1) DK1745637T3 (de)
ES (1) ES2314691T3 (de)
PL (1) PL1745637T3 (de)
PT (1) PT1745637E (de)
WO (1) WO2006005566A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8744069B2 (en) * 2007-12-10 2014-06-03 Microsoft Corporation Removing near-end frequencies from far-end sound
US20090310520A1 (en) * 2008-06-13 2009-12-17 Jun Yang Wideband telephone conference system interface
EP2597850A1 (de) * 2011-11-24 2013-05-29 Alcatel Lucent Verfahren und Anordnung zur Echounterdrückung in Konferenzsystemen
CN103391381B (zh) * 2012-05-10 2015-05-20 中兴通讯股份有限公司 回声消除方法及装置
US8965270B2 (en) * 2012-12-04 2015-02-24 Revolabs, Inc. Audio system with centralized audio signal processing
US8914007B2 (en) * 2013-02-27 2014-12-16 Nokia Corporation Method and apparatus for voice conferencing
CN105103227A (zh) * 2013-03-15 2015-11-25 英特尔公司 用于促进对会议计算设备处的音频输入/输出(i/o)设置设备的动态调整的机制
US9357080B2 (en) * 2013-06-04 2016-05-31 Broadcom Corporation Spatial quiescence protection for multi-channel acoustic echo cancellation
DE102014116610A1 (de) * 2014-11-13 2016-05-19 Fujitsu Technology Solutions Intellectual Property Gmbh Digitales Telefonkonferenzsystem, Teilnehmerzugangs- und Vermittlungsvorrichtung, Arbeitsverfahren sowie Computerprogrammprodukt
CN104538039B (zh) * 2015-01-07 2017-07-28 中国人民解放军国防科学技术大学 利用回音消除功能的音频会议安全保密系统及保密方法
US9467569B2 (en) 2015-03-05 2016-10-11 Raytheon Company Methods and apparatus for reducing audio conference noise using voice quality measures
US9672821B2 (en) * 2015-06-05 2017-06-06 Apple Inc. Robust speech recognition in the presence of echo and noise using multiple signals for discrimination
US11425261B1 (en) * 2016-03-10 2022-08-23 Dsp Group Ltd. Conference call and mobile communication devices that participate in a conference call
EP3474280B1 (de) * 2017-10-19 2021-07-07 Goodix Technology (HK) Company Limited Signalprozessor zur sprachsignalverstärkung
US10708689B2 (en) * 2018-05-15 2020-07-07 LogMeln, Inc. Reducing acoustic feedback over variable-delay pathway
US11031026B2 (en) * 2018-12-13 2021-06-08 Qualcomm Incorporated Acoustic echo cancellation during playback of encoded audio
US11122160B1 (en) * 2020-07-08 2021-09-14 Lenovo (Singapore) Pte. Ltd. Detecting and correcting audio echo
US11516579B2 (en) 2021-04-12 2022-11-29 International Business Machines Corporation Echo cancellation in online conference systems

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3505348A1 (de) * 1985-02-15 1986-08-21 Helmut 5330 Königswinter Brähler Rechnergesteuerte elektroakustische diskussionsanlage
US5062102A (en) * 1988-12-01 1991-10-29 Nec Corporation Echo canceller with means for determining filter coefficients from autocorrelation and cross-correlation coefficients
US5062101A (en) * 1989-07-21 1991-10-29 Johnson Service Company Data acquisition system
US5404397A (en) * 1992-04-16 1995-04-04 U.S. Phillips Corporation Conference system with automatic speaker detection and speaker unit
US5600714A (en) * 1994-01-14 1997-02-04 Sound Control Technologies, Inc. Conference telephone using dynamic modeled line hybrid
KR960705440A (ko) * 1994-08-04 1996-10-09 존 엠. 클락 3세 음성 압축을 사용하는 통신 시스템에서의 회의 통화를 수행하는 시스템 및 방법(system and method for conducting conference calls in a communication system utilizing voice compression)
JP2918025B2 (ja) * 1996-04-24 1999-07-12 日本電気株式会社 ２線式音声会議装置
JPH10136100A (ja) * 1996-10-28 1998-05-22 Nec Telecom Syst Ltd 会議電話システム
US6408327B1 (en) * 1998-12-22 2002-06-18 Nortel Networks Limited Synthetic stereo conferencing over LAN/WAN
JP3552967B2 (ja) * 1999-11-15 2004-08-11 沖電気工業株式会社 エコーキャンセラ装置
DE10033661B4 (de) 2000-07-11 2014-11-27 Zf Friedrichshafen Ag Hydrostatisch mechanisches Getriebe zum Antrieb einer Mischtrommel
US7539486B2 (en) * 2002-05-06 2009-05-26 Avaya Inc. Wireless teleconferencing system

Also Published As

Publication number Publication date
DE102004033866A1 (de) 2006-02-16
CA2572890A1 (en) 2006-01-19
US20070189507A1 (en) 2007-08-16
DE102004033866B4 (de) 2006-11-16
WO2006005566A1 (de) 2006-01-19
US7853007B2 (en) 2010-12-14
EP1745637B1 (de) 2008-09-17
DE502005005405D1 (de) 2008-10-30
CA2572890C (en) 2010-10-05
DK1745637T3 (da) 2009-01-19
EP1745637A1 (de) 2007-01-24
PL1745637T3 (pl) 2009-03-31
ES2314691T3 (es) 2009-03-16
PT1745637E (pt) 2008-12-30

Similar Documents

Publication Publication Date Title
ATE408960T1 (de) Konferenz-endgerät mit echoreduktion für ein sprachkonferenzsystem
JP5012387B2 (ja) 音声処理システム
JP3972921B2 (ja) 音声集音装置とエコーキャンセル処理方法
WO2010000878A3 (en) Speech enhancement method and system
KR102124760B1 (ko) 이어스피커 채널들 중에서 적응형 잡음 제거（ａｎｃ）의 조정된 제어
US20090046866A1 (en) Apparatus capable of performing acoustic echo cancellation and a method thereof
US20110181452A1 (en) Usage of Speaker Microphone for Sound Enhancement
NO20045702L (no) Audiosystem
WO2008041878A3 (en) System and procedure of hands free speech communication using a microphone array
JP4192800B2 (ja) 音声集音装置と方法
US7929725B2 (en) Acoustic apparatus and telephone conversation apparatus
WO2010004056A3 (en) Method and system for speech enhancement in a room
CN100546313C (zh) 防止通话期间声音泄漏的移动通信终端及其方法
JPH09503889A (ja) 音声相殺式送話システム
JP2006139307A (ja) 声音効果処理と騒音制御を有する装置及びその方法
CN110769352B (zh) 一种信号处理方法、装置以及计算机存储介质
CN204810369U (zh) 移动通讯终端
CN108462763B (zh) 降噪终端和降噪方法
MX2022001162A (es) Coordinacion de dispositivos de audio.
JP2015172622A (ja) 音声出力装置および音声出力方法
AU2001235692A1 (en) Method and device for comparing signals to control transducers and transducer control system
WO2008137059A3 (en) Methods and systems for reducing acoustic echoes in multichannel audio-communication systems
US10643597B2 (en) Method and device for generating and providing an audio signal for enhancing a hearing impression at live events
KR101514150B1 (ko) 음향 출력 장치의 마이크를 이용한 잔향 환경 추정 시스템
JP2017034490A (ja) インターホン装置